16–18 Jun 2025
Institute of Physics, Academia Sinica
Asia/Taipei timezone

Gravitational form factors of the Goldstone bosons from chiral effective models

16 Jun 2025, 10:30
30m
Meeting Room, 5F, New Phys Bldg (Institute of Physics, Academia Sinica)

Meeting Room, 5F, New Phys Bldg

Institute of Physics, Academia Sinica

No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City 115201, Taiwan (R.O.C.)

Speaker

Dr Hyeon-Dong Son (Inha University)

Description

In this talk, we discuss the properties of the gravitational form factors (GFFs), obtained from the second Mellin moment of the pion and kaon generalized parton distributions (GPDs) within the framework of the nonlocal chiral quark model. Our results demonstrate that explicit chiral symmetry breaking significantly influences quark GPDs in kaon at large skewness, leading to substantial modifications of the D-term compared to the exact chiral limit case. We examine the leading-order evolution of the GPDs and GFFs, and compare our results with predictions of other effective model and Lattice QCD studies. Additionally, we explore the parity-odd GFFs of the Goldstone bosons and their physical interpretations.

Primary author

Dr Hyeon-Dong Son (Inha University)

Co-author

Parada Hutauruk (Pukyong National University)

Presentation materials

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